Minty Grow Diary - GR420 LED Grow Off

[MrNice]

Legionella bacteria thrives at temperatures between 20°C and 50°C so one of the key control measures for minimising the risk is to ensure that your cold water is cold (i.e. below 20°C)

One of the best methods for preventing pythium from occurring in recirculating hydroponic systems is to maintain the optimum nutrient solution temperatures by insulating the reservoir and using a chiller. Most pythium species responsible for hydroponic crop damage are very active at a temperature range of 20-30C, so try and keep the solution at a cool 18-20oC.

hope this helps i know cold temps is needed for legionella control but also it looks like that for control of pythium thats causes root rot in hydro systems

[TTL]

That’s it Minty. I’d want four sensors if it’s possible.

[Minty]

hope this helps i know cold temps is needed for legionella control but also it looks like that for control of pythium thats causes root rot in hydro systems

Everything helps mate. Going on your description I should be fine then if I just dial the temps down to 20℃ although I think from my research the recommend temp for the water in terms of the plant is 22℃. I haven't done much research into it yet but would things like the HydroGuard not protect against this and also would you need to drink the water for it to be an issue?

That’s it Minty. I’d want four sensors if it’s possible.

How do the misters work are they directional or 360 degree?

From the top of my head you would be looking at something like these water sensors mounted (small hole in lid, to poke wire out with sensor stuck to lid underneath type approach) at each mister in a spot that would not block the mist to the roots etc but also get wet once the misting starts, then you would need to decide how to handle the event. For example the sensor will only read high/low when the water is present so would need to either dry out between sprays to be able to detect a new spray, or you could base the detection on them never drying out, or you could just rely on them being the same i.e. if anyone of them is different to the others something is potentially wrong (this is probably not recommended as you will get lots of false positves). Cost wise it's looking like it would be worth a prototype test at least as those sensors are like £1.10 and an Arduino is about £4.00 but it really depends on what you want to do with the data. They do a kit with a 12v relay and one sensor for £3.29 so you could basically switch things on and off and wouldn't even need the Arduino or any software. Just a couple of ideas.

For mine I use the Arduino to control the hardware but have a Raspberry Pi Zero W in there to provide the web server, database, wifi, etc so I can connect directly to it from my phone.

[TTL]

Thanks Minty!

[G3W2HIN]

Great stuff minty , I may have missed it in the read , curious about how long it took to set this up? Alot going on There .

The diy stuff is often more ghetto but so much more customizable.. I really love open source community projects,

great job Minty

From the middle of T.B.2, B.F.E. sector OU812 in cluster F. using Tapatalk.. inner peace

[Minty]

Thanks Minty!

Thinking a little more could you mount that sensor under your mister? ie just super glue to the actual mister? all it would need to do is catch some leaking run off to make a true reading. You put a slight incline on the mounting off it so the water would run off and I think you would be mostly there. I would definitely get some of those sensors a couple of LED's and a battery to see what sort of results you can get.

[Minty]

Great stuff minty , I may have missed it in the read , curious about how long it took to set this up? Alot going on There .

The diy stuff is often more ghetto but so much more customizable.. I really love open source community projects,

great job Minty

From the middle of T.B.2, B.F.E. sector OU812 in cluster F. using Tapatalk.. inner peace

Been planning and implementing since the start of the year. The most time consuming bit at the minute is the software as the API's I selected (node, Johnny-5, Firmata) are all pretty new to me and to be honest they are new projects in there own right so I have ended up contributing to some of these just to be able to do what I want and interface with the hardware. But it is all something I wanted to learn so all part of the overall project.

It's definitely ghetto mate with lots of tape and hot glue but we shall just call it a working Prototype if your OK with that ;o)

P.S. I notice your logo is a little LCD display, tell me more ;o)

[G3W2HIN]

Great stuff minty , I may have missed it in the read , curious about how long it took to set this up? Alot going on There .

The diy stuff is often more ghetto but so much more customizable.. I really love open source community projects,

great job Minty

From the middle of T.B.2, B.F.E. sector OU812 in cluster F. using Tapatalk.. inner peace

Been planning and implementing since the start of the year. The most time consuming bit at the minute is the software as the API's I selected (node, Johnny-5, Firmata) are all pretty new to me and to be honest they are new projects in there own right so I have ended up contributing to some of these just to be able to do what I want and interface with the hardware. But it is all something I wanted to learn so all part of the overall project.

It's definitely ghetto mate with lots of tape and hot glue but we shall just call it a working Prototype if your OK with that ;o)

P.S. I notice your logo is a little LCD display, tell me more ;o)

I'm on the dabbling side of microcontrollers, I play with them when I'm bored I've made a couple of fun projects, the lil 1306 screen and light up necklaces ,cosplay (worthless toys) and some other things like this personal press under $200 . Clean it, heat it ,control it, reinforce it, press it, smoke it ; ). Repeat steps 2 , 5-6. In that order to enjoy over and over . I built 5, 3D printers and decided to start growing again, so here we are. Enjoying your super awesome creation, thanks again for your share wow . Cheers

From the middle of T.B.2, B.F.E. sector OU812 in cluster F. using Tapatalk.. inner peace

[Ms.AK]

Love pressing!!! I enjoy the pressing but I am not as interested in the electronic part! After being around 5 3D printers and other open source electronics. I have a new respect for them and interest!


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[Minty]

I'm on the dabbling side of microcontrollers, I play with them when I'm bored I've made a couple of fun projects, the lil 1306 screen and light up necklaces ,cosplay (worthless toys) and some other things like this personal press under $200 . Clean it, heat it ,control it, reinforce it, press it, smoke it ; ). Repeat steps 2 , 5-6. In that order to enjoy over and over . I built 5, 3D printers and decided to start growing again, so here we are. Enjoying your super awesome creation, thanks again for your share wow . Cheers

Wow man that press looks ace and once I learn more about that side of thing I will definitely be tapping you up for your plans etc.

Enjoying your super awesome creation, thanks again for your share wow . Cheers

I'm also just on the dabbling side to be fair mate, total noob until I started, the only difference is that I said 'FUCK IT' to the cost side. I'm spending £100 a week on street weed so if I can make this work I really do think it will pay for itself before long. For me it was mostly about having the plan and the initial funds to set it up and try to make it as easy to control as possible to keep things discreet and off course 'No Smell, No Sell, No Tell'. Last thing I need is to have it all confiscated...